chore: bump version to 0.5.1 for release (fetchai#113)

chore: bump version to 0.5 for release (fetchai#105)

chore: bump version to 0.4.1 for minor release (fetchai#97)

release: v0.4.0 (fetchai#92)

release: v0.3.2 (fetchai#82)

release: v0.3.1 (fetchai#64)

chore: automatically update access token (fetchai#52)

chore: update pyproject.toml (fetchai#45)